Ocean clean-up and debris recovery

Plastic pollution has become one of the greatest environmental challenges facing the world's oceans. While Pliosaur Energy's primary purpose is to generate renewable electricity from tidal streams and ocean waves, the platform has also been designed to provide an opportunity to recover floating plastic waste and other marine debris during normal operation.

Wave energy is captured by allowing overtopping water to flow into an elevated reservoir before passing through the turbine. As part of this process, the water first passes through a debris-collection screen positioned across the overtopping channel. Floating plastics, discarded fishing gear, timber and other marine debris can therefore be intercepted before entering the turbine.

The screen is designed to remain accessible from the platform's service walkway, allowing routine inspection and cleaning during scheduled maintenance visits. Any collected waste can then be transferred ashore for disposal or recycling through recognised waste-management facilities.

For projects owned and operated by Pliosaur Energy, all recovered plastic and inorganic debris will be removed from the marine environment wherever practical. Where the technology is licensed or operated by third parties, equivalent debris management requirements would form part of the commercial operating agreement.

Although the quantity of debris recovered will depend upon local environmental conditions, the concept demonstrates how renewable-energy infrastructure can contribute not only to reducing greenhouse-gas emissions but also to improving the health of our oceans.